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1 // Copyright 2014 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ | |
6 #define V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ | |
7 | |
8 #include <deque> | |
9 #include <set> | |
10 | |
11 #include "src/compiler/instruction-selector.h" | |
12 #include "src/compiler/raw-machine-assembler.h" | |
13 #include "src/ostreams.h" | |
14 #include "test/cctest/cctest.h" | |
15 | |
16 namespace v8 { | |
17 namespace internal { | |
18 namespace compiler { | |
19 | |
20 typedef std::set<int> VirtualRegisterSet; | |
21 | |
22 enum InstructionSelectorTesterMode { kTargetMode, kInternalMode }; | |
23 | |
24 class InstructionSelectorTester : public HandleAndZoneScope, | |
25 public RawMachineAssembler { | |
26 public: | |
27 enum Mode { kTargetMode, kInternalMode }; | |
28 | |
29 static const int kParameterCount = 3; | |
30 static MachineType* BuildParameterArray(Zone* zone) { | |
31 MachineType* array = zone->NewArray<MachineType>(kParameterCount); | |
32 for (int i = 0; i < kParameterCount; ++i) { | |
33 array[i] = kMachInt32; | |
34 } | |
35 return array; | |
36 } | |
37 | |
38 InstructionSelectorTester() | |
39 : RawMachineAssembler( | |
40 new (main_zone()) Graph(main_zone()), | |
41 new (main_zone()) MachineCallDescriptorBuilder( | |
42 kMachInt32, kParameterCount, BuildParameterArray(main_zone())), | |
43 kMachPtr) {} | |
44 | |
45 void SelectInstructions(CpuFeature feature) { | |
46 SelectInstructions(InstructionSelector::Features(feature)); | |
47 } | |
48 | |
49 void SelectInstructions(CpuFeature feature1, CpuFeature feature2) { | |
50 SelectInstructions(InstructionSelector::Features(feature1, feature2)); | |
51 } | |
52 | |
53 void SelectInstructions(Mode mode = kTargetMode) { | |
54 SelectInstructions(InstructionSelector::Features(), mode); | |
55 } | |
56 | |
57 void SelectInstructions(InstructionSelector::Features features, | |
58 Mode mode = kTargetMode) { | |
59 OFStream out(stdout); | |
60 Schedule* schedule = Export(); | |
61 CHECK_NE(0, graph()->NodeCount()); | |
62 CompilationInfo info(main_isolate(), main_zone()); | |
63 Linkage linkage(&info, call_descriptor()); | |
64 InstructionSequence sequence(&linkage, graph(), schedule); | |
65 SourcePositionTable source_positions(graph()); | |
66 InstructionSelector selector(&sequence, &source_positions, features); | |
67 selector.SelectInstructions(); | |
68 out << "--- Code sequence after instruction selection --- " << endl | |
69 << sequence; | |
70 for (InstructionSequence::const_iterator i = sequence.begin(); | |
71 i != sequence.end(); ++i) { | |
72 Instruction* instr = *i; | |
73 if (instr->opcode() < 0) continue; | |
74 if (mode == kTargetMode) { | |
75 switch (ArchOpcodeField::decode(instr->opcode())) { | |
76 #define CASE(Name) \ | |
77 case k##Name: \ | |
78 break; | |
79 TARGET_ARCH_OPCODE_LIST(CASE) | |
80 #undef CASE | |
81 default: | |
82 continue; | |
83 } | |
84 } | |
85 code.push_back(instr); | |
86 } | |
87 for (int vreg = 0; vreg < sequence.VirtualRegisterCount(); ++vreg) { | |
88 if (sequence.IsDouble(vreg)) { | |
89 CHECK(!sequence.IsReference(vreg)); | |
90 doubles.insert(vreg); | |
91 } | |
92 if (sequence.IsReference(vreg)) { | |
93 CHECK(!sequence.IsDouble(vreg)); | |
94 references.insert(vreg); | |
95 } | |
96 } | |
97 immediates.assign(sequence.immediates().begin(), | |
98 sequence.immediates().end()); | |
99 } | |
100 | |
101 int32_t ToInt32(const InstructionOperand* operand) const { | |
102 size_t i = operand->index(); | |
103 CHECK(i < immediates.size()); | |
104 CHECK_EQ(InstructionOperand::IMMEDIATE, operand->kind()); | |
105 return immediates[i].ToInt32(); | |
106 } | |
107 | |
108 std::deque<Instruction*> code; | |
109 VirtualRegisterSet doubles; | |
110 VirtualRegisterSet references; | |
111 std::deque<Constant> immediates; | |
112 }; | |
113 | |
114 | |
115 static inline void CheckSameVreg(InstructionOperand* exp, | |
116 InstructionOperand* val) { | |
117 CHECK_EQ(InstructionOperand::UNALLOCATED, exp->kind()); | |
118 CHECK_EQ(InstructionOperand::UNALLOCATED, val->kind()); | |
119 CHECK_EQ(UnallocatedOperand::cast(exp)->virtual_register(), | |
120 UnallocatedOperand::cast(val)->virtual_register()); | |
121 } | |
122 | |
123 } // namespace compiler | |
124 } // namespace internal | |
125 } // namespace v8 | |
126 | |
127 #endif // V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_ | |
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